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libpkgconf: personality: fill in the rest of the personality parser

feature/tap-sh
William Pitcock 2018-05-09 22:08:28 -05:00
parent 1244f8f8e7
commit 751348298b
1 changed files with 97 additions and 1 deletions
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96
libpkgconf/personality.c
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@ -107,10 +107,102 @@ valid_triplet(const char *triplet)
return true;
}
typedef void (*personality_keyword_func_t)(pkgconf_cross_personality_t *p, const char *keyword, const size_t lineno, const ptrdiff_t offset, char *value);
typedef struct {
const char *keyword;
const personality_keyword_func_t func;
const ptrdiff_t offset;
} personality_keyword_pair_t;
static void
personality_copy_func(pkgconf_cross_personality_t *p, const char *keyword, const size_t lineno, const ptrdiff_t offset, char *value)
{
(void) keyword;
(void) lineno;
char **dest = (char **)((char *) p + offset);
*dest = strdup(value);
}
static void
personality_fragment_func(pkgconf_cross_personality_t *p, const char *keyword, const size_t lineno, const ptrdiff_t offset, char *value)
{
(void) keyword;
(void) lineno;
pkgconf_list_t *dest = (pkgconf_list_t *)((char *) p + offset);
pkgconf_fragment_parse(NULL, dest, NULL, value);
}
/* keep in alphabetical order! */
static const personality_keyword_pair_t personality_keyword_pairs[] = {
{"DefaultSearchPaths", personality_fragment_func, offsetof(pkgconf_cross_personality_t, dir_list)},
{"SysrootDir", personality_copy_func, offsetof(pkgconf_cross_personality_t, sysroot_dir)},
{"SystemIncludePaths", personality_fragment_func, offsetof(pkgconf_cross_personality_t, filter_includedirs)},
{"SystemLibraryPaths", personality_fragment_func, offsetof(pkgconf_cross_personality_t, filter_libdirs)},
{"Triplet", personality_copy_func, offsetof(pkgconf_cross_personality_t, name)},
};
static int
personality_keyword_pair_cmp(const void *key, const void *ptr)
{
const personality_keyword_pair_t *pair = ptr;
return strcasecmp(key, pair->keyword);
}
static void
personality_keyword_set(pkgconf_cross_personality_t *p, const size_t lineno, const char *keyword, char *value)
{
const personality_keyword_pair_t *pair = bsearch(keyword,
personality_keyword_pairs, PKGCONF_ARRAY_SIZE(personality_keyword_pairs),
sizeof(personality_keyword_pair_t), personality_keyword_pair_cmp);
if (pair == NULL || pair->func == NULL)
return;
pair->func(p, keyword, lineno, pair->offset, value);
}
static const pkgconf_parser_operand_func_t personality_parser_ops[] = {
[':'] = (pkgconf_parser_operand_func_t) personality_keyword_set
};
static void personality_warn_func(void *p, const char *fmt, ...) PRINTFLIKE(2, 3);
static void
personality_warn_func(void *p, const char *fmt, ...)
{
va_list va;
(void) p;
va_start(va, fmt);
vfprintf(stderr, fmt, va);
va_end(va);
}
static pkgconf_cross_personality_t *
load_personality_with_path(const char *path, const char *triplet)
{
char pathbuf[PKGCONF_ITEM_SIZE];
FILE *f;
pkgconf_cross_personality_t *p;
/* if triplet is null, assume that path is a direct path to the personality file */
if (triplet != NULL)
snprintf(pathbuf, sizeof pathbuf, "%s/%s.personality", path, triplet);
else
strlcpy(pathbuf, path, sizeof pathbuf);
f = fopen(pathbuf, "r");
if (f == NULL)
return NULL;
p = calloc(sizeof(pkgconf_cross_personality_t), 1);
p->name = strdup(triplet);
pkgconf_parser_parse(f, p, personality_parser_ops, personality_warn_func, pathbuf);
return p;
}
/*
@ -133,6 +225,10 @@ pkgconf_cross_personality_find(const char *triplet)
if (!valid_triplet(triplet))
return NULL;
out = load_personality_with_path(triplet, NULL);
if (out != NULL)
return out;
pkgconf_path_split(PERSONALITY_PATH, &plist, true);
PKGCONF_FOREACH_LIST_ENTRY(plist.head, n)